gecko/accessible/base/TextUpdater.h
Nathan Froyd e4e2da55c9 Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat
The bulk of this commit was generated with a script, executed at the top
level of a typical source code checkout.  The only non-machine-generated
part was modifying MFBT's moz.build to reflect the new naming.

CLOSED TREE makes big refactorings like this a piece of cake.

 # The main substitution.
find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \
    xargs perl -p -i -e '
 s/nsRefPtr\.h/RefPtr\.h/g; # handle includes
 s/nsRefPtr ?</RefPtr</g;   # handle declarations and variables
'

 # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h.
perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h

 # Handle nsRefPtr.h itself, a couple places that define constructors
 # from nsRefPtr, and code generators specially.  We do this here, rather
 # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename
 # things like nsRefPtrHashtable.
perl -p -i -e 's/nsRefPtr/RefPtr/g' \
     mfbt/nsRefPtr.h \
     xpcom/glue/nsCOMPtr.h \
     xpcom/base/OwningNonNull.h \
     ipc/ipdl/ipdl/lower.py \
     ipc/ipdl/ipdl/builtin.py \
     dom/bindings/Codegen.py \
     python/lldbutils/lldbutils/utils.py

 # In our indiscriminate substitution above, we renamed
 # nsRefPtrGetterAddRefs, the class behind getter_AddRefs.  Fix that up.
find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \
    xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g'

if [ -d .git ]; then
    git mv mfbt/nsRefPtr.h mfbt/RefPtr.h
else
    hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h
fi
2015-10-18 01:24:48 -04:00

97 lines
2.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_a11y_TextUpdater_h__
#define mozilla_a11y_TextUpdater_h__
#include "AccEvent.h"
#include "HyperTextAccessible.h"
namespace mozilla {
namespace a11y {
/**
* Used to find a difference between old and new text and fire text change
* events.
*/
class TextUpdater
{
public:
/**
* Start text of the text leaf update.
*/
static void Run(DocAccessible* aDocument, TextLeafAccessible* aTextLeaf,
const nsAString& aNewText);
private:
TextUpdater(DocAccessible* aDocument, TextLeafAccessible* aTextLeaf) :
mDocument(aDocument), mTextLeaf(aTextLeaf), mHyperText(nullptr),
mTextOffset(-1) { }
~TextUpdater()
{ mDocument = nullptr; mTextLeaf = nullptr; mHyperText = nullptr; }
/**
* Update text of the text leaf accessible, fire text change and value change
* (if applicable) events for its container hypertext accessible.
*/
void DoUpdate(const nsAString& aNewText, const nsAString& aOldText,
uint32_t aSkipStart);
private:
TextUpdater();
TextUpdater(const TextUpdater&);
TextUpdater& operator=(const TextUpdater&);
/**
* Fire text change events based on difference between strings.
*/
void ComputeTextChangeEvents(const nsAString& aStr1,
const nsAString& aStr2,
uint32_t* aEntries,
nsTArray<RefPtr<AccEvent> >& aEvents);
/**
* Helper to create text change events for inserted text.
*/
inline void FireInsertEvent(const nsAString& aText, uint32_t aAddlOffset,
nsTArray<RefPtr<AccEvent> >& aEvents)
{
RefPtr<AccEvent> event =
new AccTextChangeEvent(mHyperText, mTextOffset + aAddlOffset,
aText, true);
aEvents.AppendElement(event);
}
/**
* Helper to create text change events for removed text.
*/
inline void FireDeleteEvent(const nsAString& aText, uint32_t aAddlOffset,
nsTArray<RefPtr<AccEvent> >& aEvents)
{
RefPtr<AccEvent> event =
new AccTextChangeEvent(mHyperText, mTextOffset + aAddlOffset,
aText, false);
aEvents.AppendElement(event);
}
/**
* The constant used to skip string difference calculation in case of long
* strings.
*/
const static uint32_t kMaxStrLen = 1 << 6;
private:
DocAccessible* mDocument;
TextLeafAccessible* mTextLeaf;
HyperTextAccessible* mHyperText;
int32_t mTextOffset;
};
} // namespace a11y
} // namespace mozilla
#endif